7.5kw Three Phase AC Drive Pump

The CSIVEI 7.5kw Three Phase AC Drive Pump is a high-performance drive designed for heavy-duty industrial applications. Suitable for large fans, centrifugal pumps, compressors, and production line conveyors, it delivers exceptional torque and stability under continuous operation. Powered by advanced closed-loop vector control, this drive supports high starting torque, built-in PLC functionality, multiple communication protocols (Modbus, Profibus optional), and an intuitive LCD keypad for real-time monitoring. The IP20 enclosure with optional IP40 filter ensures reliability in demanding environments. Engineered for energy efficiency and operational precision, the CSIVEI 11-15kW VFD is the ideal choice for mission-critical motor control in industrial facilities.

Core Parameters and Specifications

Typical Applications

The CSIVEI 7.5kw Three Phase AC Drive Pump is engineered for heavy-duty industrial applications requiring high starting torque and continuous duty:

●  Large pumps – irrigation pumps, drainage pumps, main water supply pumps

●  Centrifugal compressors – industrial air compressors, refrigeration systems

●  HVAC chillers – screw chillers, centrifugal chillers, large air handlers

●  Mining equipment – slurry pumps, ventilation fans, crushers

●  Metalworking machinery – lathes, milling machines, presses

With advanced vector control and multiple communication options, it integrates seamlessly into automated production lines.

Seamless Communication & Integration

Designed for modern industrial automation, the CSIVEI VFD series offers flexible communication options to integrate effortlessly into PLC-based control systems.

Built-in Modbus RTU – Standard on all models, enabling simple connection to HMIs, PLCs, and SCADA systems via RS485. Up to 247 drives can be networked on a single bus for centralized monitoring and control.

Optional Fieldbus Modules – Expand communication capabilities with optional modules for Profibus DP, Profinet, Ethernet/IP, CANopen, and DeviceNet, ensuring compatibility with major automation platforms.

Analog & Digital I/O – Configurable inputs (0-10V, 4-20mA) and relay outputs allow flexible integration with sensors, controllers, and external alarms without additional hardware.

PLC Functionality – Select models feature built-in programmable logic capabilities, enabling simple logic control and interlocking directly within the drive, reducing the need for external controllers.

FAQs

How do I choose the right VFD for my motor?

A few things to consider:

Motor power—the VFD should match or be slightly larger than the motor rating.

Input voltage—single‑phase 230V or three‑phase 400V, make sure it matches your supply.

Load type—constant torque loads like conveyors or extruders usually need the VFD sized at 100–120% of motor power. Variable torque loads like fans and pumps can often use a VFD matched to motor power, plus you get energy savings.

Environment—for dusty, humid, or outdoor locations, go for a higher IP rating (IP40, IP54, IP66) or put the drive in a protected enclosure.

Communication—if you need to talk to a PLC or SCADA, check that the drive supports your protocol (Modbus RTU is standard; Profibus, Ethernet/IP, etc. are optional).

CSIVEI also has a sizing tool and tech support if you want a second opinion.

What communication protocols are supported?

All CSIVEI drives come with Modbus RTU over RS485 as standard. Optional modules are available for Profibus DP, Profinet, Ethernet/IP, CANopen, and DeviceNet. These let you integrate with major PLC and SCADA systems for remote monitoring, parameter changes, and centralized control.

What protections are built into the drive?

CSIVEI drives include a solid set of protections: over‑voltage, under‑voltage, over‑current, short circuit, over‑temperature (heatsink), phase loss on input or output, and motor overload (electronic thermal overload, I²t). These help keep things running reliably and extend equipment life.

How do I troubleshoot common faults?

The drive shows fault codes on the keypad for quick diagnosis:

●  OC (over‑current) – check for shorts, motor winding issues, or accel time too short

●  OV (over‑voltage) – check the braking resistor (if used) or decel time too short

●  UV (under‑voltage) – check input power and wiring

●  OH (over‑temperature) – check the cooling fan, ambient temperature, and mounting clearance

●  OL (overload) – check the motor load, increase accel time, or consider upsizing the drive

●  The manual has a full fault code table with detailed steps. If something's still off, CSIVEI tech support can help.

Does the VFD come with a warranty and technical support?

Yes. Our drives come with a standard 18‑month warranty from the date of manufacture (or 12 months from installation, whichever is later). Extended warranty options are available for critical applications. Global tech support is available via email, phone, and online resources—user manuals, application guides, and configuration software are all included.

Customer Case

A furniture manufacturing facility required precise airflow control for its dust collection system. Running fans at full speed continuously was inefficient and created excessive noise.

Solution: A CSIVEI 7.5kw Three Phase AC Drive Pump was installed on the main exhaust fan, with a pressure sensor monitoring duct pressure to regulate fan speed.

Results:

1.Fan speed automatically adjusts to match dust collection demand

2.Energy savings of 45% during partial load operation

3.Noise level reduced by 12 dB, improving working conditions

4.Reduced mechanical wear on fan bearings and belts

5.The system now meets both environmental compliance and operational efficiency targets.